Battery System

A battery system and battery module technology, applied in secondary batteries, battery pack components, battery boxes/jackets, etc., can solve problems such as bending of ultra-long battery cells, high internal resistance, and long electrode joint distance, etc. The effect of maximizing cooling performance, minimizing electrical connection length, and minimizing internal resistance

Pending Publication Date: 2021-05-11
SK ON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, long battery cells or ultra-long battery cells have the problem of high internal resistance and increased electrical loss due to the longer distance between the electrode terminals, and there are problems with the performance of the battery cell due to the large temperature difference between the various regions of the battery cell. The problem of lowering and life-span reduction, and it may also be accompanied by the problem of bending the ultra-long battery unit due to its own weight, etc.

Method used

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Embodiment Construction

[0039] The embodiments described in this specification and the structures shown in the drawings are merely preferred embodiments of the disclosed invention, and various modifications that can replace the embodiments and drawings in this specification may exist at the time of filing this application.

[0040] Also, the same reference numerals or symbols shown in the respective figures of this specification denote parts or components that perform substantially the same function.

[0041] Also, the terms used in this specification are used to illustrate the embodiments only, and are not used to limit and / or define the disclosed invention. The singular includes the plural unless the context clearly dictates otherwise. In this specification, terms such as "comprising" or "having" indicate the existence of features, numbers, steps, operations, components, components or combinations thereof described in the specification, without excluding one or more other features, Existence or ad...

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Abstract

The invention relates to a battery system. The battery system includes a plurality of battery modules including battery cells in which electrode tabs having different polarities are formed at both ends thereof, wherein a plurality of battery cells are stacked. The plurality of battery modules includes: a first terminal having a first positive electrode terminal and a first negative electrode terminal, which are formed by connecting electrode tabs located at one end of the battery cells to each other among the plurality of electrode tabs; and a second terminal having a second positive electrode terminal and a second negative electrode terminal, which are formed by connecting electrode tabs located at the other end of the battery cells to each other among the plurality of electrode tabs. The first and second terminals of any one battery module of the plurality of battery modules are arranged to be electrically connected with the first and second terminals of battery modules adjacent to the any one battery module.

Description

technical field [0001] The present invention relates to a battery system, and more particularly, to a battery system with an improved structure. Background technique [0002] Secondary batteries are attracting attention as a power source for electric vehicles (EVs), hybrid electric vehicles (HEVs), etc., which are solutions to conventional gasoline that use fossil fuels Proposed programs on issues such as air pollution from automobiles, diesel vehicles, etc. [0003] On the other hand, in order to load the secondary battery in the vehicle, it is necessary to solve the problem of increasing the energy density and eliminating the space limitation, for which a long battery cell is proposed in which the edge length between the electrode joints is much longer than Set the edge length of the electrode joint. Generally, the length of the battery unit is less than 300 mm, but unlike this, the long battery unit has a length of 600 mm, and the ultra-long battery unit is designed to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/209H01M50/24H01M50/244H01M50/249H01M50/258H01M10/613H01M50/502
CPCH01M10/613H01M50/548H01M50/55H01M50/211H01M50/507H01M50/569H01M50/296Y02E60/10H01M10/647H01M50/543H01M50/54H01M50/502
Inventor 全海龙安旋谟崔永善
Owner SK ON CO LTD
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